公开(公告)号：US5066552A

公开(公告)日：1991-11-19

申请号：US394784

申请日：1989-08-16

申请人： James K. Howard ,  Randall G. Simmons ,  Tadashi Yogi

发明人： James K. Howard ,  Randall G. Simmons ,  Tadashi Yogi

IPC分类号： C23C14/14 ,  G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/73 ,  G11B5/738 ,  G11B5/85 ,  G11B5/851 ,  H01F10/16 ,  H01F41/18

CPC分类号： G11B5/656 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12465 ,  Y10T428/1266 ,  Y10T428/12931

摘要： An improved CoPt alloy magnetic recording disk for horizontal recording has a magnetic recording layer which includes oxygen, the oxygen being present preferably in the range of approximately 5 to 30 atomic percent. The resulting disk structure has substantially decreased intrinsic media noise at high linear recording density.

公开(公告)号：US5302434A

公开(公告)日：1994-04-12

申请号：US926986

申请日：1992-08-07

申请人： Mary F. Doerner ,  Dan S. Parker ,  Anthony W. Wu ,  Tadashi Yogi

发明人： Mary F. Doerner ,  Dan S. Parker ,  Anthony W. Wu ,  Tadashi Yogi

IPC分类号： C23C14/06 ,  C23F4/00 ,  G11B5/64 ,  G11B5/65 ,  G11B5/72 ,  G11B5/73 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84 ,  G11B5/851 ,  G11B25/04 ,  G11B33/14 ,  G11B5/704

CPC分类号： G11B5/7325 ,  G11B25/043 ,  G11B33/148 ,  G11B5/72 ,  G11B5/738 ,  G11B5/82 ,  G11B5/8404 ,  G11B5/851 ,  Y10S428/90 ,  Y10T428/1275 ,  Y10T428/265

摘要： A magnetic recording disk based on conventional disk technology has both an extremely smooth top surface and high coercivity, and is incorporated in a contact recording disk file which requires an extremely smooth head-disk interface and a disk with high coercivity. A superfinished untextured NiP coating on a disk substrate is oxidized to form a NiO film. The NiO film permits the subsequently sputter deposited magnetic layer to have much higher coercivity, which enables the disk to be used in contact recording applications. The NiO film and the later deposited layers making up the disk, including the top protective overcoat, conform to the smooth surface of the polished NiP, thus preserving the extremely smooth surface of the top layer of the disk, which is required for the head-disk interface in contact recording disk files. In the preferred process for forming the NiO film on the substrate, the substrate is annealed in air at a temperature below that which would cause the NiP film to crystallize.

摘要翻译： 基于常规磁盘技术的磁记录盘具有非常光滑的顶表面和高矫顽力，并且被结合在需要非常光滑的头盘接口和高矫顽力的盘的接触记录盘文件中。 在盘基底上的未完成的未结合的NiP涂层被氧化以形成NiO膜。 NiO膜允许随后的溅射沉积的磁性层具有高得多的矫顽力，这使得盘可用于接触记录应用。 NiO膜和构成盘的后期沉积层（包括顶部保护外涂层）符合抛光NiP的光滑表面，从而保持了磁头顶部的极其平滑的表面， 磁盘接口记录磁盘文件。 在用于在衬底上形成NiO膜的优选方法中，衬底在低于使NiP膜结晶的温度的空气中退火。

公开(公告)号：US07068470B1

公开(公告)日：2006-06-27

申请号：US10092453

申请日：2002-03-06

申请人： Jafar Hadian ,  Tadashi Yogi ,  Shuyu Zhang

发明人： Jafar Hadian ,  Tadashi Yogi ,  Shuyu Zhang

IPC分类号： G11B5/48

CPC分类号： G11B5/484 ,  G11B5/4833

摘要： A disk drive includes a drive housing, a storage disk coupled to the drive housing and a head arm assembly coupled to the drive housing. The head arm assembly includes an adjuster and a slider coupled to the adjuster. As provided herein, the adjuster changes the gram load that is applied to the slider as the temperature near the adjuster changes. In one of the embodiments, the adjuster increases the gram load that is applied to the slider as the temperature near the adjuster decreases.

摘要翻译： 磁盘驱动器包括驱动器壳体，联接到驱动器壳体的存储盘和耦合到驱动器壳体的头臂组件。 头臂组件包括调节器和联接到调节器的滑块。 如本文所提供的，当调节器附近的温度改变时，调节器改变施加到滑块的克负荷。 在其中一个实施例中，当调节器附近的温度降低时，调节器增加施加到滑块的克负载。

公开(公告)号：US5307223A

公开(公告)日：1994-04-26

申请号：US926488

申请日：1992-08-07

申请人： Mary F. Doerner ,  Dan S. Parker ,  Anthony W. Wu ,  Tadashi Yogi

发明人： Mary F. Doerner ,  Dan S. Parker ,  Anthony W. Wu ,  Tadashi Yogi

IPC分类号： G11B5/02 ,  G11B5/64 ,  G11B5/66 ,  G11B5/72 ,  G11B5/73 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84 ,  G11B5/851 ,  G11B25/04 ,  G11B33/14 ,  G11B

CPC分类号： G11B5/7325 ,  G11B25/043 ,  G11B33/148 ,  G11B5/72 ,  G11B5/738 ,  G11B5/82 ,  G11B5/8404 ,  G11B5/851

摘要： A magnetic recording disk based on conventional disk technology has both an extremely smooth top surface and high coercivity, and is incorporated in a contact recording disk file which requires an extremely smooth head-disk interface and a disk with high coercivity. A superfinished untextured NiP coating on a disk substrate is oxidized to form a NiO film. The NiO film permits the subsequently sputter deposited magnetic layer to have much higher coercivity, which enables the disk to be used in contact recording applications. The NiO film and the later deposited layers making up the disk, including the top protective overcoat, conform to the smooth surface of the polished NiP, thus preserving the extremely smooth surface of the top layer of the disk, which is required for the head-disk interface in contact recording disk files. In the preferred process for forming the NiO film on the substrate, the substrate is annealed in air at a temperature below that which would cause the NiP film to crystallize.

摘要翻译： 基于常规磁盘技术的磁记录盘具有非常光滑的顶表面和高矫顽力，并且被结合在需要非常光滑的头盘接口和高矫顽力的盘的接触记录盘文件中。 在盘基底上的未完成的未结合的NiP涂层被氧化以形成NiO膜。 NiO膜允许随后的溅射沉积的磁性层具有高得多的矫顽力，这使得盘可用于接触记录应用。 NiO膜和构成盘的后期沉积层（包括顶部保护外涂层）符合抛光NiP的光滑表面，从而保持了磁头顶部的极其平滑的表面， 磁盘接口记录磁盘文件。 在用于在衬底上形成NiO膜的优选方法中，衬底在低于使NiP膜结晶的温度的空气中退火。

公开(公告)号：US06798613B1

公开(公告)日：2004-09-28

申请号：US10075211

申请日：2002-02-12

申请人： Douglas J. Krajnovich ,  Tadashi Yogi

发明人： Douglas J. Krajnovich ,  Tadashi Yogi

IPC分类号： G11B548

CPC分类号： G11B5/4826 ,  G11B5/6005

摘要： A disk drive includes a drive housing, an actuator arm mounted to the drive housing, a head suspension assembly secured to the actuator arm, a spindle secured to the drive housing, a storage disk positioned on the spindle and a spacer positioned on the spindle. The actuator arm includes a suspension mounting side and the spindle includes a disk mounting surface. A actual measured distance along a first axis between the suspension mounting side and the disk mounting surface is measured. The spacer is positioned between the disk mounting surface and the storage disk. The spacer has a spacer height along the first axis that is based upon the actual measured distance.

摘要翻译： 磁盘驱动器包括驱动器壳体，安装到驱动器壳体的致动器臂，固定到致动器臂的磁头悬挂组件，固定到驱动器壳体的主轴，定位在主轴上的存储盘和定位在主轴上的间隔件。 致动器臂包括悬挂安装侧，并且主轴包括盘安装表面。 测量悬挂安装侧和盘安装面之间沿着第一轴的实际测量距离。 间隔件位于盘安装表面和存储盘之间。 间隔物具有基于实际测量距离的沿着第一轴的间隔物高度。

公开(公告)号：US5523173A

公开(公告)日：1996-06-04

申请号：US364571

申请日：1994-12-27

申请人： Mary F. Doerner ,  Brent D. Hermsmeier ,  Tadashi Yogi

发明人： Mary F. Doerner ,  Brent D. Hermsmeier ,  Tadashi Yogi

IPC分类号： G11B5/64 ,  G11B5/84 ,  G11B5/66

CPC分类号： G11B5/656 ,  G11B5/8404 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12465 ,  Y10T428/12854 ,  Y10T428/31678

摘要： A high-density longitudinal recording medium comprising a CoPtCrB alloy with a chromium content in excess of 17 atomic percent exhibits high coercivity, low noise, and high Curie temperatures. Films are prepared by sputter depositing a chromium or chromium alloy underlayer on a non-magnetic substrate. A strong [100] crystallographic orientation of the underlayer is required to achieve a low noise, high coercivity medium. This orientation is achieved by depositing the underlayer on a negatively biased substrate under high temperature, low pressure conditions. The oriented underlayer prevents the subsequently deposited CoPtCrB alloy from orienting itself in its preferred, c axis vertical orientation. The CoPtCrB alloy comprises 4 to 12 percent platinum, 18 to 23 percent chromium and 2 to 10 percent boron.

摘要翻译： 包含铬含量超过17原子％的CoPtCrB合金的高密度纵向记录介质具有高矫顽力，低噪音和高居里温度。 通过在非磁性基底上溅射沉积铬或铬合金底层制备膜。 需要底层的强大的[100]晶体取向以实现低噪声，高矫顽力介质。 该取向通过在高温低压条件下将底层沉积在负偏压衬底上来实现。 取向的底层防止随后沉积的CoPtCrB合金以其优选的c轴垂直取向自身取向。 CoPtCrB合金含有4-12％的铂，18-23％的铬和2-10％的硼。